A shocked Sansa can be seen standing in front of one of the weirwood trees in one part of the clip.

Another sees Arya - fresh from murdering Walder Frey - riding on horseback. Could she be heading home to Winterfell to reunite with her bastard brother Jon Snow and her sister Sansa?

Meanwhile, Jon appears to be deep in conversation with a red-haired woman - which could be Sansa, after the pair reclaimed their home in the season finale. Or could Melissandre have made her return to the North?

Fans will have a long wait to find out. Game of Thrones season seven is expected to hit the small screen in summer 2017.